Door suspension for steam cookers



c. c. BANKS. DOOB SUSPENSION FOR STEAM CO0KERS..

APPLICATION HLED JULY 30' I919.

Patented Nov. 21, 1922.

Patented Nov. 21, 1922.

user stares CHESTER C. BANKS, OF CLEVELAND, OHIO, ASSIGNOE TO THE BORN STEEL RANGE COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

DOOR SUSPENSION FOR STEAM COOKERS.

Application filed July 30,

To all whom. it may concern:

Be it known that l, CHEs'rnRC. BANKS, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and 5 State of Ohio, have invented a certain new and useful Improvement in Door- Suspensions for Steam Cookers, of which the following is a full, clear, and exact description.

In steam cooking apparatus, such as employed in restaurants and hotels, the construction usually employed comprises a box- ,like chamber to which steam is admitted. The chamber has a door which is hinged at one end and suitable clamping or securing means is carried at the other end of the door. These doors are usually equipped with mechanism for forcing the door under pressure against the opening in the chamber for :0 the purpose of preventing the escape of steam from the chamber.

The difficulty with such constructions has been that at the hinged end of the cover the complete seating of the cover is impossible to effect because the hinge limits the 'movement of the door no matter how much pressure is applied.

Thepurpose of this invention is to provide a door mounting such that the door is not directly hinged upon the steam chamber but is so mounted that it has a limited amount of movement with respect to its mounting so that the door may be moved to effect a tight engagement at all parts of the 5 door.

Further objects of the invention will appear asthe description proceeds and generally speaking the invention may be said to comprise the elements and the combinations thereof set forth in the accompanying claims.

Reference should be had to the accompanying drawing forming a part of this specification in which Fig. 1 is a perspective view showing an apparatus containing the present invention; Fig. 2 is a perspective view of a unit steam chamber; Fig. 3 is a perspective view of a ing mechanism therefor; Fig. 4 is a section showing a detail of construction; Fig. 5 is a section showing a detail ofconstruction.

Referring to the drawing, 1 indicates a steam chamber unit of which there are three shown in the drawing. These units are door and the mount- 1919. Serial No. 314,269.

mounted upon a suitable base or standard 2 and it will of course be understood that suitable steam connections are provided for delivering live steam to the interior of the several chambered units 1. The steam apparatus is not shown as it forms no part of the present invention.

Each of the units is provided with an opening 3 which is closed by a door generally represented at 4.

Hinged upon one side of a chambered unit 1 is an arm such as indicated at 5. This arm carries the door 4. At its opposite end the arm is provided with a hinged hook shape member 6 which is adapted to engage with a lug 7 carried by a side wall ofthe chamber 1 so that when the door is in closed position, the end of the arm is prevented from swinging; because of the engagement of the hook shaped member 6 with the projection 7 The particular construction just described is merely indicative of any suitable form of mechanism for the purpose of securing the end'of the arm 5.

The wall of container 1. adiacent the projection 7 has a lug 7 extending therefrom and the arm 5 at the free end thereof has a lug 5 extending therefrom (see Fig. 3). When the door is in closed position the lug 5 engages and rests upon the lug 7 thereby forming a support for the free end of arm 5 and preventing sagging'of the end of the arm. The arm 5 at least in part is provided with a central channel 8, which channel is adapted to receive a rib 9 which is formed on the outside surface of the door' 4. At one portion of the arm thereis a member 10 which extends transversely of the channel 8, which member is adapted to fit in a slot 11 formed in the rib 9. As member 10 extends diagonally with respect to the slot or groove 8 and the slot 11 is also a diagonal slot. It will be apparent that when the member 10 is within the slot 11 the engagement is such as to permit a limited amount of sliding movement of the door 4 with respect to the arm 5.

Adjacent the end of the door 4 there is a yoke member 12. This yoke member has a transversely extending part 13, which lies just above a portion of the arm 5. The yoke 12 straddles, the. arm 5. This yoke member functions as the retaining member to hold the end of the door with respect .to the arm will be seen the.

supported upon the arm 5 by the rib 9 and which is adapted to receive 80 3 and caused to bear the door is retained and the rib 9 prevented from sliding out-of the groove 8 by means of the member 10 engaging in the slot 11 and the yoke 1:2 engaging with the arm 5.

Adjacent the central portion of the arm 5 a threaded member 14 is provided which extends through a threaded opening in the arm". This threaded member at its outer end is provided with a hand wheel 15 by which itmay be manipulated.

The door 4 at approximately the middle portion of the rib 9 has a depression 16 an end of the threaded member 14.

It will be apparent from the foregoing construction that the door 4 is so mounted with respect to the arm 5 that the door has a limited amount of movement with respect to the arm 5 and when the hand wheel is turned the dooryl may be moved as a unit into engagement with the wall of the chambered unit 1 which with substantially equal pressure at all points aroundthe engaging surface of the door. thereby enabling a tight closure to be effected.

In order to provide a steam tight engagement between the door and the cham- 40 pose, but the gasket bered member 1, it is necessary to provide some sort of packing in the form of a gasket. I am aware that various forms of packing have been proposed for the purherein described is of particularly advantageous form.

The door adjacent the edge thereof is provided with a continuous substantially half round depression 17 and in this depression 17 there is seated a lead wire. The lead Wire may be compressed to the necessary degree so that it expands into the opening 17 and is held therein. \Vhen the door is closed the lead wire engages with the 0 surface surrounding the opening 3 in the chambered member 1 and when pressure is applied to the hand wheel 15 a steam tight joint is' pr'ovidedlj As will be apparent, various changes in the details of construction may be efl'ected and I do not wish to limit myself to the precise construction except as the claims shall specify.

Having described my invention, I claim-- 1. The combination with a chambered member having an opening, a hinged memper pivoted to the chambered member adaccnt an edge of the opening and adapted to extend across the openin tirely mounted upon the sai hinged memsurrounds the opening' a door ell-- ber and capable of movement including longitudinal movement with respect thereto. means 'for securing the frceend of the hinged member to the chamlwred member. and means carried by the hinged member for moving the door with respect thereto.

:2. The combination with a chambered member having an opening. a door to close said opening, a hinged member mounted J upon the chambered member, the door being entirely supported by the lunged member and having engaging and supporting portions which permit relative movement includin lon itudinal movement of the door with respect to the hinged member and means for applying pressure to the. door.

3. The combination with a chambered rcceptacle having an opening. a door membcr for closing said opening. a hinged member supported by the receptacle. one of said members being provided with an elongated longitudinal groove, the other of said members being provided with an elongated ribbed portion which engages in the grooved portion. means associated with the door and hinged member for holding them together. said means permittinglimited amount of longitudinal and pivotal movement of the door with respect to the hinged member.

and means for exerting pressure upon the door.

4. The combination with a chambered receptacle having an opening. a door member for closing said opening. a hinged member supported by the receptacle, a groove formed in one of said members. a rib formed in the other of said men'ibers which engages in said groove, the said rib being provided with a diagonal slot, a member extending transversely of said groove and adapted to engage 1n the said slot, means adjacent one end of the door which engages with the hinged member. whereby the door-may have a'limited amount of movement with respect to the hinged member but is held thereto and means for exerting pressure on the door.

5. The combination with a chambered receptacle having an opening. a door member for closing said opening. a hinged member upon which the dooris' entirely supported, said door havinga limited amount of mov merit including longitudinal respect to the" hinged member. means for securing the free end of the hinged member with respect to the chambered receptacle, and independent means carried by the movement with.

hinged member for exerting pressure upon the door.

6. The combination with a chambered receptacle having an openingza doormember to close said opening, a hinged member mounted upon said receptacle. one of said members having a groove formed therein. the other .of said members having a rib engaging in said groove, means associated 1S0 with the hinged member and the door for the hinged member for exerting pressure retaining the door upon the hinged mem 0n the door said-last mentioned means beber, the said door having a limited amount ing independent of the means for retaining 10 of movement with respect to the hinged the door on the hinged member.

member, means for securing the free end of In testimony whereof, I hereunto aflix my the hinged member with respect to the signature.

chambered, receptacle and means carried by CHESTER'C. BANKS. 

